nanog mailing list archives
Re: What is a reasonable range for global BGP table size?
From: Jared Mauch <jared () puck Nether net>
Date: Thu, 18 Jul 2002 16:30:24 -0400
On Thu, Jul 18, 2002 at 11:11:18AM -0600, Kris Foster wrote:
That number is still too high since some people are advertising their /25 to /32 prefixes to the route-views box..
true, but unless you do ingress filtering of your upstream (which most smaller ASes do not do) your numbers may be wrong. People also leak internal routes to route-views at times also i've noticed. (still talking about the same route-views snapshot) count netmask % cut -d: -f2 oix.home_as.out | cut -d/ -f2 | sort -n | uniq -c 25 8 6 9 7 10 12 11 36 12 99 13 269 14 514 15 9764 16 1537 17 2778 18 8378 19 8131 20 6075 21 9949 22 12258 23 73921 24 468 25 419 26 354 27 378 28 241 29 225 30 105 32 - jared
Kris-----Original Message----- From: Jared Mauch [mailto:jared () puck Nether net] Sent: Thursday, July 18, 2002 12:47 PM To: Robert Boyle Cc: nanog () merit edu Subject: Re: What is a reasonable range for global BGP table size? I was going off my data analysis of route-views data. wc -l oix.home_as.out 135949 oix.home_as.out this file has prefix:home_asn (where home_asn is the last asn in the as_path. prefixes with inconsistent home_as will appear twice. this may be cause of some of your confusion. eliminating those brings it to 120131 prefixes) - jared On Thu, Jul 18, 2002 at 12:37:09PM -0400, Robert Boyle wrote:At 11:26 AM 7/18/2002 -0400, you wrote:Hmm. We don't filter, and 112942 network entries and 391859 paths using 25288182bytes of memoryWe don't filter either and... 117800 network entries and 339843 paths using 23660948bytes of memory"about 135k prefixes last i checked." is not what we seehere from any ofour upstreams. -Robert Tellurian Networks - The Ultimate Internet Connection http://www.tellurian.com | 888-TELLURIAN | 973-300-9211 "Good will, like a good name, is got by many actions, andlost by one." -Francis Jeffrey-- Jared Mauch | pgp key available via finger from jared () puck nether net clue++; | http://puck.nether.net/~jared/ My statements are only mine.
-- Jared Mauch | pgp key available via finger from jared () puck nether net clue++; | http://puck.nether.net/~jared/ My statements are only mine.
Current thread:
- Re: What is a reasonable range for global BGP table size?, (continued)
- Re: What is a reasonable range for global BGP table size? Stephen J. Wilcox (Jul 18)
- Re: What is a reasonable range for global BGP table size? Robert Boyle (Jul 18)
- Re: What is a reasonable range for global BGP table size? Jared Mauch (Jul 18)
- Re: What is a reasonable range for global BGP table size? Me (Jul 17)
- Re: What is a reasonable range for global BGP table size? Rob Thomas (Jul 17)
- Re: What is a reasonable range for global BGP table size? Marshall Eubanks (Jul 17)
- Re: What is a reasonable range for global BGP table size? senthil ayyasamy (Jul 17)
- Re: What is a reasonable range for global BGP table size? Ross Chandler (Jul 17)
- Re: What is a reasonable range for global BGP table size? Rob Thomas (Jul 17)
- RE: What is a reasonable range for global BGP table size? Kris Foster (Jul 18)
- Re: What is a reasonable range for global BGP table size? Jared Mauch (Jul 18)
- Re: What is a reasonable range for global BGP table size? Marshall Eubanks (Jul 18)
- Re: What is a reasonable range for global BGP table size? Joe Abley (Jul 18)
- Re: What is a reasonable range for global BGP table size? Jared Mauch (Jul 18)